package com.gl.service.impl;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.gl.service.OssService;
import com.gl.utils.ConstantOssUtils;
import org.joda.time.DateTime;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.InputStream;
import java.util.UUID;

@Service
public class OssServiceImpl implements OssService {
    //上传图片
    @Override
    public String uploadFilePicture(MultipartFile file) {
        //获取上传参数
        String endpoint = ConstantOssUtils.END_POIND;
        String accessKeyId = ConstantOssUtils.ACCESS_KEY_ID;
        String accessKeySecret = ConstantOssUtils.ACCESS_KEY_SECRET;
        String bucketName = ConstantOssUtils.BUCKET_NAME;
        try{
            //创建OSSClient实例
            OSS ossClient = new OSSClientBuilder().build(endpoint,accessKeyId,accessKeySecret);
            //获取上传文件的输入流
            InputStream inputStream = file.getInputStream();
            //获取文件名称
            String fileName = file.getOriginalFilename();

            //在文件名称里面添加随机唯一的值
            String uuid = UUID.randomUUID().toString().replaceAll("-", "");
            fileName = uuid+fileName;

            //把文件按照日期进行分类
            //2020/12/24/01.jpg
            //获取当前日期
            String datePath = new DateTime().toString("yyyy/MM/dd");

            //拼接名称
            fileName = datePath + "/" +fileName;

            //调用oss方法实现上传
            //第一个参数 Bucket名称
            //第二个参数 上传oss文件路径和文件名称
            //第三个参数 上传文件的输入流
            ossClient.putObject(bucketName,fileName,inputStream);

            //关闭OSSClient
            ossClient.shutdown();
            //把上传之后文件路径返回
            //需要把上传到阿里云oss路径手动拼接出来
            //  https://zjx-2020.oss-cn-beijing.aliyuncs.com/01.jpg
            String url = "https://"+bucketName+"."+endpoint+"/"+fileName;
            return url;

        }catch (Exception e){
            e.printStackTrace();
            return null;
        }

    }
}
